package com.tolls;

class Book{

    public Book(String msg){

        System.out.println(msg);

    }
}

public class Pers {

    Book book1 = new Book("book1");
    static  Book book2 = new Book("book2");

    public Pers(String msg){

        System.out.println(msg);
    }

    Book book3 = new Book("book3");
    static Book book4 = new Book("book4");

    public static void main(String[] args) {


        System.out.println("fff".hashCode());

        A a = new A();
        try {

        } catch (Exception e) {
            e.printStackTrace();
        }
        if("ff".equals("f")){

        }

     //  Pers pers = new Pers("pers");
    }
}
